[ CVE-2026-84740 · Published 2 Oct 2026 ]
Vulnerability in Unknown The Events Calendar
CVSS 6.5
EPSS <1%No fix listed yet
[ Description ]Official description
The Events Calendar WordPress plugin before 6.17.5.1 does not validate or sanitise data submitted to an unauthenticated AJAX action before merging it into its rendering context, allowing unauthenticated users to execute arbitrary shortcodes registered on the site.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.